[INFO] cloning repository https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmed2929%2Fimplementing_TCP_protocol-using-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmed2929%2Fimplementing_TCP_protocol-using-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5834f56a6c47554b60cef0778cf61b723b3dbec3 [INFO] testing ahmed2929/implementing_TCP_protocol-using-Rust against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmed2929%2Fimplementing_TCP_protocol-using-Rust" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust [INFO] finished tweaking git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust [INFO] tweaked toml for git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded etherparse v0.8.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cac3408ba4946d0eee07ee0259debd0d00fa08e28362e220fe81c92a83c54478 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "cac3408ba4946d0eee07ee0259debd0d00fa08e28362e220fe81c92a83c54478", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cac3408ba4946d0eee07ee0259debd0d00fa08e28362e220fe81c92a83c54478", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cac3408ba4946d0eee07ee0259debd0d00fa08e28362e220fe81c92a83c54478", kill_on_drop: false }` [INFO] [stdout] cac3408ba4946d0eee07ee0259debd0d00fa08e28362e220fe81c92a83c54478 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 748ed2a2459e41d7a04ecd7e73ecc9dbc04345cdc4d225f8ac59b4d68c8e2c3d [INFO] running `Command { std: "docker" "start" "-a" "748ed2a2459e41d7a04ecd7e73ecc9dbc04345cdc4d225f8ac59b4d68c8e2c3d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling cc v1.0.59 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling tokio-sync v0.1.8 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling etherparse v0.8.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling tokio-executor v0.1.10 [INFO] [stderr] Compiling crossbeam-queue v0.2.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling tokio-timer v0.2.13 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.35 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling tokio-threadpool v0.1.18 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling tokio-io v0.1.13 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling tokio-reactor v0.1.12 [INFO] [stderr] Compiling tokio-codec v0.1.2 [INFO] [stderr] Compiling tokio-fs v0.1.7 [INFO] [stderr] Compiling tokio-uds v0.2.7 [INFO] [stderr] Compiling tokio-tcp v0.1.4 [INFO] [stderr] Compiling tokio-udp v0.1.6 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling tokio-core v0.1.17 [INFO] [stderr] Compiling TCP_Rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:53:2 [INFO] [stdout] | [INFO] [stdout] 4 | / loop{ [INFO] [stdout] 5 | | let nic=tun_tap::Iface::new("tun0", tun_tap::Mode::Tun)?; [INFO] [stdout] 6 | | let mut buffer = [0; 512]; [INFO] [stdout] 7 | | let Number_of_bytes=nic.recv(&mut buffer[..])?; [INFO] [stdout] ... | [INFO] [stdout] 50 | | [INFO] [stdout] 51 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 52 | [INFO] [stdout] 53 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ether_net_flags` [INFO] [stdout] --> src/main.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | let ether_net_flags=u16::from_be_bytes([buffer[0],buffer[1]]); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ether_net_flags` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `TCP_Rust` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `tcp_rust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Number_of_bytes` should have a snake case name [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | let Number_of_bytes=nic.recv(&mut buffer[..])?; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_of_bytes` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.50s [INFO] running `Command { std: "docker" "inspect" "748ed2a2459e41d7a04ecd7e73ecc9dbc04345cdc4d225f8ac59b4d68c8e2c3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "748ed2a2459e41d7a04ecd7e73ecc9dbc04345cdc4d225f8ac59b4d68c8e2c3d", kill_on_drop: false }` [INFO] [stdout] 748ed2a2459e41d7a04ecd7e73ecc9dbc04345cdc4d225f8ac59b4d68c8e2c3d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d70dac08de8211364e131be912eb314aa062e4418b5c79184e25c508021a16b6 [INFO] running `Command { std: "docker" "start" "-a" "d70dac08de8211364e131be912eb314aa062e4418b5c79184e25c508021a16b6", kill_on_drop: false }` [INFO] [stderr] Compiling TCP_Rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:53:2 [INFO] [stdout] | [INFO] [stdout] 4 | / loop{ [INFO] [stdout] 5 | | let nic=tun_tap::Iface::new("tun0", tun_tap::Mode::Tun)?; [INFO] [stdout] 6 | | let mut buffer = [0; 512]; [INFO] [stdout] 7 | | let Number_of_bytes=nic.recv(&mut buffer[..])?; [INFO] [stdout] ... | [INFO] [stdout] 50 | | [INFO] [stdout] 51 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 52 | [INFO] [stdout] 53 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ether_net_flags` [INFO] [stdout] --> src/main.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | let ether_net_flags=u16::from_be_bytes([buffer[0],buffer[1]]); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ether_net_flags` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `TCP_Rust` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `tcp_rust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Number_of_bytes` should have a snake case name [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | let Number_of_bytes=nic.recv(&mut buffer[..])?; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_of_bytes` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `Command { std: "docker" "inspect" "d70dac08de8211364e131be912eb314aa062e4418b5c79184e25c508021a16b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d70dac08de8211364e131be912eb314aa062e4418b5c79184e25c508021a16b6", kill_on_drop: false }` [INFO] [stdout] d70dac08de8211364e131be912eb314aa062e4418b5c79184e25c508021a16b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8c628bcd94f76bb56d304c6afa7a3f559c770532e54c509c253e76edc4c8a164 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8c628bcd94f76bb56d304c6afa7a3f559c770532e54c509c253e76edc4c8a164", kill_on_drop: false }` [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:53:2 [INFO] [stderr] | [INFO] [stderr] 4 | / loop{ [INFO] [stderr] 5 | | let nic=tun_tap::Iface::new("tun0", tun_tap::Mode::Tun)?; [INFO] [stderr] 6 | | let mut buffer = [0; 512]; [INFO] [stderr] 7 | | let Number_of_bytes=nic.recv(&mut buffer[..])?; [INFO] [stderr] ... | [INFO] [stderr] 50 | | [INFO] [stderr] 51 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 52 | [INFO] [stderr] 53 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ether_net_flags` [INFO] [stderr] --> src/main.rs:10:10 [INFO] [stderr] | [INFO] [stderr] 10 | let ether_net_flags=u16::from_be_bytes([buffer[0],buffer[1]]); [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ether_net_flags` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate `TCP_Rust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `tcp_rust` [INFO] [stderr] [INFO] [stderr] warning: variable `Number_of_bytes` should have a snake case name [INFO] [stderr] --> src/main.rs:7:6 [INFO] [stderr] | [INFO] [stderr] 7 | let Number_of_bytes=nic.recv(&mut buffer[..])?; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_of_bytes` [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/TCP_Rust-da6dfaa07dfbdb04) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8c628bcd94f76bb56d304c6afa7a3f559c770532e54c509c253e76edc4c8a164", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c628bcd94f76bb56d304c6afa7a3f559c770532e54c509c253e76edc4c8a164", kill_on_drop: false }` [INFO] [stdout] 8c628bcd94f76bb56d304c6afa7a3f559c770532e54c509c253e76edc4c8a164